81087668

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{491}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 156219840

約数和(自身を除く): 75132172

約数列:

[1, 2, 4, 19, 38, 41, 53, 76, 82, 106, 164, 212, 491, 779, 982, 1007, 1558, 1964, 2014, 2173, 3116, 4028, 4346, 8692, 9329, 18658, 20131, 26023, 37316, 40262, 41287, 52046, 80524, 82574, 104092, 165148, 382489, 494437, 764978, 988874, 1066943, 1529956, 1977748, 2133886, 4267772, 20271917, 40543834, 81087668]

約数ペア:

[(1, 81087668), (2, 40543834), (4, 20271917), (19, 4267772), (38, 2133886), (41, 1977748), (53, 1529956), (76, 1066943), (82, 988874), (106, 764978), (164, 494437), (212, 382489), (491, 165148), (779, 104092), (982, 82574), (1007, 80524), (1558, 52046), (1964, 41287), (2014, 40262), (2173, 37316), (3116, 26023), (4028, 20131), (4346, 18658), (8692, 9329)]